Guitar room humidity.

I keep mine below 50%. Dehumidifier runs full time throughout the spring and summer. My guitars are fine and stable and I stay more comfortable. When it gets between 60-70%, the necks on most of my guitars start shifting. I had some of them move pretty drastically when we first moved in, before I had a dehumidifier in the basement. When I plugged it in, the room was at 85% humidity. Really no good. They're all fine now that it's under control down there.
 
Mine is between 30 (winter) and 75% (summer) humidity.

Electric guitars don't seem to give a fuck and stay out all year long. Usually they don't even need a tweak of the neck over the seasons. My acoustic stays in the case though and I alternate between a case humidifier or dehumidifier depending on the season. Interestingly, I've found that the drier it gets the better my acoustic sounds. There's a noticeable change in sound for the worse when humidity gets up into the 70s and it's noticeably better sounding starting at around 40%.
 
My house isn't the best at regulating temperature, so we keep it 65ish in the winter and 78ish in the summer. We don't humidity regulate at all and my guitars do just fine. Tone is in the sweat.
 
In 65 years of playing guitar and living in several areas in California, in Utah, and in Toronto Ontario, I've never had a problem with humidity affecting my guitars.
 
I was worried about the acoustic guitars, I put a damp sponge in the case like every other month because it gets so dry here.
 
Amazing that none of you have problems with it. I guess it makes sense in Florida since everything is always soaked all the time. Some of my guitars are more stable than others with humidity changes, but the swing between dry winters and hot wet summers does a number on the necks. Didn't have too much of a problem in New York, but I did in MA, and here in VT the difference between summer and winter is even more pronounced.
 
The soil is clay up here, and we have humidity issues in our basements and houses. I have a dehumidifier to combat mold and mildew. It also helps the guitars. Like Seashore, I have mine set to around 50%. If any lower, my sinuses dry out, and I get prone to infections.
 
The soil is clay up here, and we have humidity issues in our basements and houses. I have a dehumidifier to combat mold and mildew. It also helps the guitars. Like Seashore, I have mine set to around 50%. If any lower, my sinuses dry out, and I get prone to infections.

I had issues in NJ & RI but never in FL or CR.

I'm certain that its the drastic seasonal change. I think high humidity is great, but it's bone dry out here.
 
The high humidity here doesn't seem to harm the guitars, however.

I think it's the going back and forth between 20-30% in the winter and 70-90% in the summer. I brought my guitars up separately when we moved here, set the studio up in the basement, and left everything there for a couple weeks while we finished the move. By the time I went to check on them, every guitar but the Steinberger and my 6-string bass had bowed back so far the strings were tight against the frets. The dehumidifier brought them back to where they were supposed to be. I'm used to a bit of seasonal adjustment but this was pretty extreme.

​​​​​​My new guitars have been the most prone to wide swings. The first winter I had my Schecter E1 the neck was all over the place depending on how much our old school radiators were drying everything out. Took a couple years for that one and the Epiphone to settle down.
 
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